Door lock



FIG. 1 is a perspective view of a door lock;

FIG. 2 is a front elevated view thereof, the rear elevated view being amirror image thereof;

FIG. 3 is a right side elevated view thereof, the left side elevatedview being a mirror image thereof;

FIG. 4 is a bottom view thereof; and,

FIG. 5 is a top view thereof.

The broken lines shown in the drawings depict a plate in which the doorlock engages that form no part of the claimed invention.

CLAIM The ornamental design for a door lock, as shown and described.